A man charged in last month’s beating death of a 6-year- old boy in South Los Angeles pleaded not guilty Wednesday to charges of murder and assault on a child causing death.

Marcas Catrell Fisher, who was arrested Aug. 19 in North Las Vegas, remains jailed in lieu of $2 million bail pending his next appearance in Compton Superior Court on Sept. 9.

The 36-year-old man is accused of killing Dae’von Bailey, who was beaten and bludgeoned to death. His body was found July 23 at a home in the 800 block of East 87th Place.

The boy’s mother, who is Fisher’s ex-girlfriend, had left her son in his care, according to Los Angeles Police Department Deputy Chief Charlie Beck.

He said last week that police used “some modern technology, in addition to a lot of good, old-fashioned police work and interviews and surveillance,” in locating Fisher after a murder warrant was issued.

The arrest involved members of a multi-agency task force, including LAPD detectives, the U.S. Marshals Service, Department of Justice and members of the North Las Vegas and Las Vegas Metro police departments.